Then, they somehow weight the data so that what comes out is what
the sample would look like if the Democrat/Republican/Independent
percentages were equal to
the results found by Rasmussen Reports in the single month of
August— 35.4 percent Republican, 34 percent Democrat, and 30.5
percent Independent.

The resulting number comes out overwhelmingly favorable for
Mitt Romney.

Using figures from Talking Points
Memo's excellent
polling database, we looked at sixty polls from the past
two years that surveyed what the partisan split of the United
States was.

These polls found an average of 32.2 percent Democrats and 24.4
percent Republicans taken as a whole.

We plotted the partisan split of each poll here. You'll observe
that there are two polls which seem to disagree with the data —
one is a
Bloomberg Poll from this past week, the other is an
New York Times/CBS poll from October 2011.

The red plot point is the Rasmussen Reports poll that has formed
the basis for the UnskewedPolls.com analysis. You'll observe that
it disagrees substantially from a two-year record of a
statistically significant number of polls.

Walter Hickey/BI, Data
from TPM PollTracker

Essentially, the source of the partisan split for the
UnskewedPolls.com shift is substantially different from the
consensus area.

Were UnskewedPolls.com to use an aggregation of Rasmussen Party
Identification polls they could make a compelling argument
perhaps, but cherry picking a single favorable dataset to
coordinate your analysis is poor form.

For now — or at least until the group can justify its analysis —
UnskewedPolls is suspect at best.